These perennials resemble astilbe, with slowly spreading clumps of finely divided leaves topped in summer by plumy, branched clusters of tiny white or cream flowers. Good in perennial borders or at the edge of a woodland against a dark background.
From Korea. Deep green, finely divided leaves make a mound 1 ft. tall and wide. White flower plumes reach 16 in. high. Useful in rock gardens, as edgings, for small-scale groundcover.
Native to Eurasia and to southeastern and south-central Alaska. Grows to 6 (sometimes 7) ft. tall and 4 ft. wide, with foamy plumes of white flowers in 20-in., much-branched clusters. Tolerates more sun than A. aethusifolius. ‘Kneiffii’ is half the size of the species, with more finely divided, near-ferny leaves. ‘Child of Two Worlds’ (‘Zweiweltenkind’) grows to 5 ft. tall, with gracefully drooping flower clusters.
Native to Hawaii. Grows to 3–6 ft. tall and wide. Pure yellow, 2–3-in.-wide flowers are pr...
Bushy and open, this heath grows to 2–3 ft. high and wide and has bright green foliage. Summer f...
Clump-forming plants to about 1 1/2 ft. tall (in bloom) and 1 1/2–2 ft. wide; spread by rhizomes...